Printer&#39;s quoin key



May 5, 1925." 1,536,344

E. P. HULSE PRINTERS QUOIN KEY Filed Sept. 25, 1924 un mm m II printing Patented May 5, 1925.

UNITED stares PATENT OFFICE.

ASSIG-NOR TO AMERICAN TYLP OF NEW JERSEY.

rnrnrnns QUOIN' KEY.

Application filed September 23, 1924,. Serial No. 739,240.

To all whom it may concern:

Be it known that I, EDWARD P. Home, a citizen of the United States, and resident of Westfield, in the county of Union and State of New Jersey, new and useful Improvements in Printers Quoin Keys, of which the following is a specification.

This invention relates to printers quoin keys and the object of the invention is to provide an improved quoin key adapted for use with the prevailing types of quoins for operatingthe same. i

The quoins most commonly used in the industry at present are of two gen- "eral types with reference to the keys used for operating'the quoin. One type requires a key having a key pegjof square cross section. Another type requires a key peg formed like a pinion or with teeth for engaging the racks provided in the quoins. This will be more fully explained hereinafter. i i

The specific object of this invention is to provide a quoin key having a universal key peg adapted to operate different types of quoins as aforesaid. Y

Accordingly my invention is embodied in a quoin key constructed and arranged as hereinafter set forth and as illustrated in the accompanying drawing in which i Fig. 1 is a view of a quoin: key embodyingmy invention. i

Fig. 2 is a sectional detail view of the quoin key showing it adjusted for use with one kind of quoins, and with parts broken away. i I r Fig. 3 is a similar View butshows the key adjusted foruse with a diiferent type of quoin. y

Fig.4 is a detail View of the key peg clamping jaws.

Fig. 5 is an endview of the key peg.

Fig. 6 is an end view of Figure 3 showing the key peg.

Flgure 1 showmg Fig. 7 is a. view of the improved universal key peg.

Fig. 8 shows the use of my improved universal quoin key in connection with one type of quoin.

Fig. 9 shows the use of my quoin key with a different type of quoin.

Referring first to Figure 8 the numeral 10 denotes a printers quoin of well known have invented certain types of quoins,

both types of character comprising two symmetrical parts 11 and 12 provided with teeth 13. This quoin is expansible by moving one part relative to the other part by using a key 14 having teeth 15 for engaging the teeth 13, or racks 13, on the quoin parts. By r0- tating the) key the two quoin parts move relative to each other and the quoin is en panded in the usual and well known manner.

Figure 9 illustrates a type of quoin having two parts 16 and 17 which are expanded by a wedge member 18 operable by a square key 19 inserted in a tumbler 20 which upon rotation actuate's the wedge to expand the quoin.

Thequoins illustrated in Figures 8. and

9 are standard, as it were, in the printing industry with keys required, selves may be differently constructed.

For the purpose of this disclosure I shall designate the quoins as being operable by a square key as in Figure 9 or by a pinion key as in Figure 8. These terms are, how'- ever, merely for purposes of identification andreference and are purely arbitraryand not to be understood as limiting my invention. i

It is Obvious, that if a printers shop is equipped with both types of quoins, as they usually are, the printer requires two separate keys for, operating the quoins. This may cause confusion, be lost, and other troubles may arise. By having only one key adapted to operate both these objections are elimiprinter may use either on quoins, but requires only one key to operate them. Again, if a shop uses only the one type of quoins, it is not necessary to provide a particular key, therefor, because my invention provides a key adaptreference to the shape vof the nated and the able for either type of quoins. This is an obvious advantage.

although the quoins themone of the keys may i Figure 7 illustrates my improved universal key peg which. comprises a relatively long pinion portion 14 having flanges or teeth 15 and an integral square portion 19 which preferably is the shorter portion of the key peg.

A tool or key is provided for using either key portions of the key peg. As seen in Figures 1 to 6 the key comprises a suitably shaped handle 21 having a stem 22 formknurled sleeve ing four threaded jaws 23 E23. Between. the jaws are four slots 24, 52 i adapted to receive the teeth 15 on the key peg. One or more of the slots 24% may be provided with a shoulder or .stop against which the teeth 15 are seated so as to properly ad'- just the key peg in'the key.

As seen in Figures 1 and 2, when the square key peg 19 is to be used, the pinion portion 1a is inserted in the jaws 23 against the stops and the peg is then clamped firmly in position in the jaws by means of a or nut 27 which is screwed on to the jaws. If necessary or desired a set screw28 as in Figure 1 may be used to the sleeve in position.

If the pinion key is to be used, the peg is inserted as in Figure 3 with the square portion 19 seated against shoulders 30 formed within the socket 31 within the threaded jaws23, after which the pen is clamped by the nut 27 as before.

' Of course, in either of the positions shown in Figures 2 and 3 the key peg may be adjust'ed to project further from the stem of the key and held until clamped. But for all ordinary use the peg will be simply thrust into the jaws against the shoulders aforesaid and then clamped.

The universal key and key peg as hereinprovided is of no Q'reate'r expense to manufacture than when a single particular key peg is used in the key. The change from using: the one end of the peg to using the other end thereof is quickly made and in either case the peg is firmly clamped in the key. 7 While I have disclosed my invention herein in its preferred fprm, it will. be understood' that changes and modifications may be made therein without departing from the principle of the invention and the scope of the appended laiins.

I clalm 1. As a new article of manufacture, a peg for printers quoin keys comprising a pinportionand another integral portion having a square cross section, either of which portions is adapted to be used in a printers key as and for the purpose set forth.

2 As a new article of manufacture, a peg for printers quoin keys comprising a pinion portion as described and a. square key portion integral therewith and extending key peg longitudinally of said pinion portion at one end thereof.

3. As a new article of manufacture, a printers quoin key comprisinga tool a key peg having a pinion portion and as'qii'are portion integral tl'ierewith, either of which portions is adapted to be used as a key for operating printers quoins and means in said tool for clamping said key peg therein irrespective of which portion of said key peg is to be used as aforesaid.

4. As a new article of manufacture, a printers quoin key comprisinga stem, a handle for operating the key. a key peg haring' a pinion portion and a square portion integral therewith, either of which portions is adapted to be'used as a key for operating printers quoins, slots formed in the said stem for receiving the said pinion portion of the peg to position the latter in the stem and means on said stem for clamping the key peg in the said key.

5. As a new article of manufacture, a printers quoin key comprising a stem, a handle for operating the key, a key peg having a pinion portion and a square portion integral therewith, either of which portions is adapted to be used as a key for operating printers quoins, jaws formed in the said stem for clamping the key therein, means in said stein for placing the peg therein in a predetermined position irrespective of which portion of the key peg is to be used as a key and a nut for clamping said jaws around the said key peg.

6. As a new article of manufacture, a printers quoin key comprising a stem; a handle for operating the key, a reversible having two differently shaped key portions for operating different types of printers quoins and means for clamping the said reversible key pee in the said handle whereby to use either of the said two differently shaped key portions as and for the purpose set forth.

7. The combination of a. tool, a reversible printers quoin key peg having two differently shaped integral key portions for operating; different types of printers quoins and means for clamping the said key peg in the said tool whereby to use either of the said two differently shaped key portions as and for the purpose set forth.

EDWARD P. HULSE. 

